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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef HARDWARE_GOOGLE_CAMERA_HAL_GOOGLE_CAMERA_HAL_RESULT_PROCESSOR_H_
#define HARDWARE_GOOGLE_CAMERA_HAL_GOOGLE_CAMERA_HAL_RESULT_PROCESSOR_H_
#include <utils/Errors.h>
#include "hal_types.h"
#include "process_block.h"
namespace android {
namespace google_camera_hal {
// ResultProcessor defines the interface of a result processor. A result
// processor receives results from a ProcessBlock. It can return the finished
// results to the specified callback functions. If a class inherits both
// ResultProcessor and RequestProcessor interfaces, it can convert the results
// to requests to send to the next ProcessBlock.
class ResultProcessor {
public:
virtual ~ResultProcessor() = default;
// Set the callbacks to send the finished results. Must be called before
// calling ProcessResult.
virtual void SetResultCallback(ProcessCaptureResultFunc process_capture_result,
NotifyFunc notify) = 0;
// Add pending requests to the result processor.
//
// process_block_requests are the requests that will be completed by the
// preceding process block.
//
// remaining_session_request is the remaining request that was sent to the
// capture session. It contains all remaining output buffers that have not
// been completed by the process chain yet. For the last result process in a
// process chain, remaining_session_request should contain only the output
// buffers that are present in process_block_requests.
// remaining_session_request doesn't contain any internal buffers.
virtual status_t AddPendingRequests(
const std::vector<ProcessBlockRequest>& process_block_requests,
const CaptureRequest& remaining_session_request) = 0;
// Called by a ProcessBlock to send the capture results.
virtual void ProcessResult(ProcessBlockResult block_result) = 0;
// Called by a ProcessBlock to notify a message.
virtual void Notify(const ProcessBlockNotifyMessage& block_message) = 0;
// Flush all pending workload.
virtual status_t FlushPendingRequests() = 0;
};
} // namespace google_camera_hal
} // namespace android
#endif // HARDWARE_GOOGLE_CAMERA_HAL_GOOGLE_CAMERA_HAL_RESULT_PROCESSOR_H_
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